Comparative transcriptome analysis of genes involved in paradormant bud release response in 'Summer Black' grape.

ABSTRACT: Grapevines possess a hierarchy of buds, and the fruitful winter bud forms the foundation of the two-crop-a-year cultivation system, yielding biannual harvests. Throughout its developmental stages, the winter bud sequentially undergoes paradormancy, endodormancy, and ecodormancy to ensure survival in challenging environmental conditions. Releasing the endodormancy of winter bud results in the first crop yield, while breaking the paradormancy of winter bud allows for the second crop harvest. Hydrogen cyanamide serves as an agent to break endodormancy, which counteracting the inhibitory effects of ABA, while H₂O₂ and ethylene function as signaling molecules in the process of endodormancy release. In the context of breaking paradormancy, common agronomic practices include

SUBMITTER: Fan S 

PROVIDER: S-EPMC10561283 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature